SPECIFICATION Supported sampling rates (kHz): 8/11.025/12/16/22.05/24/32/44.1/48 24 -bit DAC output, support for dynamic range 90dB , SNR support 85dB Fully supports FAT16 , FAT32 file system, maximum support 32G of the TF card, support 32G of U disk, 64M bytes NORFLASH A variety of control modes, I/O control mode, serial mode, AD button control mode Advertising sound waiting function, the music can be suspended. when advertising is over in the music continue to play Audio data sorted by folder, supports up to 100 folders, every folder can hold up to 255 songs 30 level adjustable volume, 6 -level EQ adjustable